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# P.Sc Unit 1 Vocab

### Newtons first law, inertia, and motion

TermDefinition
Distance how far you have travelled between two positions. It is always positive. It is a scalar quantity.
Displacement change in position. It is the straight line distance between your starting position and ending position. It is equal to Final position minus initial position. It can be positive or negative. It is a vector quantity.
Scalar quantity that only requires magnitude (how big)
Vector quantity that requires both magnitude (how big) and directions
Speed how fast something is moving. It is equal to distance divided by time. It is a scalar quantity
Velocity rate at which position changes. It is equal to displacement divided by time. It is a vector quantity
Created by: Dominick613